SC5014A View Datasheet(PDF) - Semtech Corporation

Part Name

Description

MFG CO.

SC5014A

High Efficiency 2-Channel HB LED Driver with I2C Interface and Direct PWM Dimming

Semtech Corporation 

SC5014A

Register Map

Address Bit 7

0x00

CLF

0x02

Bit 6

Bit 5

LED_

SHORT

Bit 4

LED_

OPEN

IDAC4

Bit 3

IDAC3

Bit 2

OTP

IDAC2

Bit 1

OVP

IDAC1

Bit 0

Reset

Value

FAULT 0x00

IDAC0 0x1F

Description

Fault Status

Analog Dimming

Control

Definition of Registers and Bits

Fault Status Register

Bit Field Definition Read / Write Description

0x00 [7]

CLF

Clear latching flags bit.

W

(Set = 1 to clear OTP, LED_OPEN, LED_SHORT and mask OVP for 32 to 64μs)

0x00 [5] LED_SHORT

R

One or more LED strings faulted shorted

0x00 [4]

LED_OPEN

R

One or more LED strings faulted open

0x00 [2]

OTP

R

Thermal shutdown (1 = thermal OTP fault)

0x00 [1]

OVP

R

Output over-voltage fault ( 1 = OVP )

0x00 [0]

FAULT

R

OR of all fault conditions (0= no fault, 1 = fault condition)

Analog Dimming Control Register

Bit Field Definition Read / Write Description

0x02 [4:0] IDAC [4:0]

R/W

5-bit analog dimming register — The LED current can adjusted in 32 steps from 0mA to max

value determined by RISET.

24

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